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                                    283DEEP HOLE DRILLINGFINE-BEAM Cutting Conditions for BTA and DTS Drilling MethodsThe main elements of the cutting conditions for deep drilling are cutting speed and feed. When drilling holes, it is important to select the right cutting conditions in which the tool will work normally, i.e., most efficiently, in order to save the tool from premature wear, taking into account maximum productivity. Recommended initial conditions are shown in the table below, according to chipbreaker form and workpiece material.
                                
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